Folding wings pneumatic loading unfolding experiment device

An experimental device and a technology for folding wings, which are applied in the field of aerodynamic loading and unfolding test devices for folding wings, can solve the problems of large occupied space, complex structure and high technical test cost, and achieve the effects of convenient operation, high test efficiency and wide application range.

Active Publication Date: 2013-05-29
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the shortcomings of the existing technology and overcome the problems of complex structure, large space occupation

Method used

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  • Folding wings pneumatic loading unfolding experiment device
  • Folding wings pneumatic loading unfolding experiment device
  • Folding wings pneumatic loading unfolding experiment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] This embodiment is an experimental device for aerodynamic loading and deployment of a folding wing.

[0027] The platen size of the folding wing aerodynamic loading test device of this embodiment: 1200mm × 800mm; cylinder inner diameter Φ125~Φ200mm, stroke 200mm, inflation pressure 0.1~0.7MPa; steel cable diameter is 12mm, the distance from the rotating shaft to the outer end of the rotating arm is 600mm.

[0028] The main technical indicators achieved are:

[0029] 1. Adjustment range of loading force in the direction perpendicular to the folding wing surface: 1000~10000N;

[0030] 2. Accuracy of loading force: ±2%;

[0031] 3. The moment of inertia of the follow-up swing arm device around the axis of the rotating shaft: 0.05kg m 2 ;

[0032] The air source of this embodiment is provided by an air compressor with a rated pressure of 0.7 MPa and a flow rate of not less than 100 L / min.

[0033] The force sensor of this embodiment is an S-type load cell with a measur...

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Abstract

The invention relates to a folding wings pneumatic loading unfolding experiment device consisting of two force-augmentation devices, a servo arm swing mechanism and a rack. The force-augmentation device comprises a gas source, a pressure-reducing valve, a cylinder, a force sensor and a digital dynamometer, wherein the gas source transmits gas to the cylinder through pressure adjustment of the pressure-reducing valve, the force sensor and the digital dynamometer can accurately measure augmented force. The servo arm swing mechanism includes a thrust bearing support, and two radial bearings positioned rotating shafts and rotating arms on up and down portions. One end of a steel cable is connected to ring-pull screws of a sensor, and the other end of the steel cable winding on a front roller seat, a back roller seat and a roller on a tumbler is connected to force-bearing points of the folding wings. The folding wings pneumatic loading unfolding experiment device has a simple structure, a big adjustment range for the augmented force, a convenient and easy operation method, and high test efficiency. In the unfolding process of the folding wings, the servo arm swing mechanism can rotate around the folding wings to ensure the augmented force to always be perpendicular to the folding wings, which is particularly suitable for small and medium sized folding wings loading unfolding experiments.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and experimental equipment, and relates to an aerodynamic loading and unfolding test device for a folding wing. Background technique [0002] In modern missile design, in order to save space and facilitate transportation, more missiles use folding wings. This can not only satisfy the box launch, but also use the large wing surface to generate greater lift during the flight of the missile. After the missile is launched, the wings are unfolded, and the reliability and performance of the unfolding mechanism is one of the key technologies related to the success or failure of the missile launch. Therefore, carrying out the folding wing deployment test on the ground, especially simulating the aerodynamic force on the folding wing during the flight, is very important for the comprehensive assessment of the reliability of the folding wing and the testing of the folding wing under different char...

Claims

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Application Information

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IPC IPC(8): G01M9/00
Inventor 吴斌王琛黄德东
Owner NORTHWESTERN POLYTECHNICAL UNIV
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